BUENOS AIRES â?? Argentine voters handed a decisive victory to Mauricio Macri in the countryâ??s presidential election on Sunday, delivering a strong mandate to an opposition political figure in search of to roll back some of the protectionist economic measures of the departing president, Cristina FernÃ¡ndez de Kirchner.

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Operating a largely nonconfrontational campaign in a society that has grown increasingly polarized beneath Mrs. Kirchner, who succeeded her husband in 2007, Mr. Macri, 56, stunned the political establishment in October by forcing the race into a runoff and sustaining his surge in current weeks. He ran to the correct of his rivals, blending plans to overhaul the economy and market the tolerance of numerous points of view on social troubles.

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A dejected supporter of Daniel Scioli, the governor of Buenos Aires who had been the front-runner as the handpicked selection of President Cristina FernÃ¡ndez de Kirchner.Credit Alejandro Pagni/Agence France-Presse â?? Getty Pictures

Mr. Macriâ??s victory revealed deep fissures in Argentina right after 12 years of governance by Mrs. Kirchner and her husband, with several voters expressing concern more than the path of the economy and aggravation with Mrs. Kirchnerâ??s blistering attacks on critics in the news media, company establishments and rival political parties.

â??Cristina divided the nation and destroyed it morally,â? stated Dimitri Javakhishvili, 67, an immigrant from Georgia who functions as a doorman at a creating right here in the neighborhood of Recoleta. Mr. Javakhishvili acknowledged that Mr. Macri could face challenges in attempting to govern when Mrs. Kirchnerâ??s political movement moves into the opposition.

Not everyone here shares such views. Graffiti and posters have appeared across Buenos Aires demonizing Mr. Macri, outnumbering on a lot of streets the campaign posters expressing assistance for Mr. Scioli, who balanced lukewarm assistance from Mrs. Kirchnerâ??s loyal followers with claims that social spending could be sustained in spite of galloping inflation and declining private investment.

One example of anti-Macri sentiment, alluding to fears that he will govern for a privileged couple of, simply says â??Macrisis.â?

Mr. Macri, the scion of a wealthy family, has tried to combat perceptions that he would reverse the governmentâ??s leftist policies, saying he will hold the nationalized companies like AerolÃ­neas Argentinas and YPF, Argentinaâ??s largest oil company, below state handle. His financial advisers have also sought to tamp down fears around contentious financial concerns like a possible currency devaluation.

In addition to grappling with inflation and currency controls aimed at curbing capital flight, Mr. Macri will now face the challenge of governing with significantly of his opposition beneath the sway of Peronism, the ideologically diverse political grouping that has dominated Argentine politics for decades.

But although Mrs. Kirchnerâ??s leftist faction has emerged as a dominant group inside Peronism, with the president herself signaling that she planned to stay politically active soon after stepping down in December, Mr. Macriâ??s margin of victory will assist him in the months ahead, analysts said.

â??He will be capable to begin to operate with authority,â? said Juan Cruz DÃ­az, a director at the Cefeidas Group, a political danger evaluation firm. But he added that Mr. Scioliâ??s performance nevertheless demonstrated the underlying strength of the Peronist political movement. â??Itâ??s not a devastating margin of distinction,â? Mr. Cruz DÃ­az mentioned. â??With a fatigued government and an erratic campaign, itâ??s a very good performance. They are far from dead.â?

A lot of political analysts in Argentina doubted that Mr. Macri would make it this far, with skepticism abounding when he began assembling his movement to the correct of a lot of rivals much more than a decade ago.

He ventured into a element of Argentinaâ??s political spectrum that had previously been linked with conservative Peronists or disgraced figures in the military establishment.

But more than time, he honed his negotiating capabilities as the mayor of Buenos Aires, whilst insisting during this yearâ??s campaign that he did not program to roll back well-known social programs introduced in the course of the Kirchnersâ?? presidencies, like cash subsidies for poor households and â??Soccer for Everyone,â? a government initiative that covers soccer broadcasting costs so men and women can watch matches totally free.

Mr. Macri seemed to acquire the upper hand following mounting a door-to-door campaign that helped his supporters win critical provincial and regional races in October, such as the prized post of the governor of Buenos Aires Province, now held by Mr. Scioli but won by MarÃ­a Eugenia Vidal, a best adviser to Mr. Macri and deputy mayor who focused largely on antipoverty applications in the municipal government.

Several voters have also expressed fatigue with Mrs. Kirchnerâ??s governing style and reports of corruption amongst her prominent supporters.

Signaling that she may possibly not strategy to stay subdued right after leaving office, Mrs. Kirchner issued a torrent of messages on Twitter on Sunday celebrating her foreign and domestic policies. One particular message even seemed like a warning to Mr. Macri, who has vowed to boost Argentinaâ??s strained ties with the United States and assessment a contentious deal with China to create a nuclear reactor.

â??The individual with the duty of leading the homeland need to know the appropriate location of the Argentine republic in a multipolar world,â? Mrs. Kirchner wrote.

Mr. Macriâ??s â??wager wasnâ??t an effortless one particular,â? the Argentine writer MartÃ­n CaparrÃ³s wrote in the Spanish newspaper El PaÃ­s. But Mr. Macriâ??s ambitions were aided, Mr. CaparrÃ³s stated, by â??12 years of rule by a couple that spoke as if from the left but acted in their personal interests.â?

Some voters, even so, mentioned that their fears over the threats to the governmentâ??s antipoverty programs outweighed criticism of the Kirchners or issues that Mr. Scioli, viewed as friendlier to the company establishment, was not as radical as they had hoped.

â??Iâ??m voting for the lesser of two evils,â? mentioned Teo LevÃ­n, 25, a health-related student who explained that he was voting for Mr. Scioli with gritted teeth. â??I recognize that Scioli will adopt come conservative financial policies, but he wonâ??t destroy the political model. Macri will. Heâ??s the worst thing in the planet.â?